It's more likely a Java issue. Either update to Java 1.5 or backdate to 1.4.2 since different versions of java run differently on particular people's systems.

yahoo popup w/antispy is obviously not a properly configured program to cater for p2p programs. Need to be careful about which ones you get. And uninstalling LW is not exactly a proper solution if this person wants to continue using LW. So if you uninstalled LW, what are you doing here?